Comscore Reports February 2010 U.S. Mobile Subscriber Market Share

Use of Social Media via Mobile Device Continues to Post Strong Gains

RESTON, VA, April 5, 2010 – Comscore, Inc. (NASDAQ: SCOR), a leader in measuring the digital world, today released data from the Comscore MobiLens service, reporting key trends in the U.S. mobile phone industry during the three month period between November 2009 and February 2010. The report ranked the leading mobile original equipment manufacturers (OEMs) and smartphone platforms in the U.S. according to their share of usage by current mobile subscribers age 13 and older, and reviewed the most popular activities and content accessed via the subscriber’s primary mobile phone. The February report found Motorola to be the top handset manufacturer overall with 22.3 percent market share, while RIM led among smartphone platforms with 42.1 percent market share.

OEM Market ShareIn the 3 month average ending in February, 234 million Americans age 13 and older were mobile subscribers, with device manufacturer Motorola ranking as the top OEM at a 22.3 percent share of U.S. mobile subscribers. LG ranked second with 21.7 percent share, followed by Samsung (21.4 percent share), Nokia (8.7 percent share) and RIM (8.2 percent share).

Smartphone Platform Market Share45.4 million people in the U.S. owned smartphones in an average month during the December to February period, up 21 percent from the three months ending November 2009. RIM was the leading mobile smartphone platform in the U.S. with 42.1 percent share of U.S. smartphone subscribers, rising 1.3 percentage points versus the prior period. Apple ranked second with 25.4 percent share followed by Microsoft at 15.1 percent, Google at 9.0 percent (up 5.2 percentage points), and Palm at 5.4 percent. Google’s Android platform continues to see rapid gains in market share as more Android-compatible devices are introduced to the market.

Mobile Content UsageIn an average month during the December through February 2010 time period, 64.0 percent of U.S. mobile subscribers used text messaging on their mobile device, up 1.9 percentage points versus three months prior. Browsers were used by 29.4 percent of U.S. mobile subscribers (up 2.4 percentage points), while subscribers who used downloaded applications made up 27.5 percent (up 1.8 percentage points). Access of social networking sites or blogs continued to grow, increasing 2.9 percentage points to 18.0 percent of mobile subscribers.

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